#include <StringConstants.au3> ; to declare the Constants of StringRegExp
#include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate
Local $sRegex = "name="__RequestVerificationToken" type="hidden"\s*value="(.+?)" "
Local $sString = "<input name="__RequestVerificationToken" type="hidden" " & @CRLF & _
" value="BeRYiSIRjZoQHq4VW8qbkgXlnnzdUINpFNoYF_ugx-FRk0tkImbQPhwyYjyz_0Q-w6F2A0gDOfMZrdklD6rVn6-QnYggfImb55f90V7nrD_kbSkT3-y3gPqoTFg0ynTBLyX5Lw2" />"
Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYGLOBALFULLMATCH)
Local $aFullArray[0]
For $i = 0 To UBound($aArray) -1
_ArrayConcatenate($aFullArray, $aArray[$i])
Next
$aArray = $aFullArray
; Present the entire match result
_ArrayDisplay($aArray, "Result")
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm